Might have been nostr:nprofile1qqsyvrp9u6p0mfur9dfdru3d853tx9mdjuhkphxuxgfwmryja7zsvhqppemhxue69uhkummn9ekx7mp0qythwumn8ghj7anfw3hhytnwdaehgu339e3k7mf0qyghwumn8ghj7mn0wd68ytnhd9hx2tch2deau's Pixel:
Discussion
There must have been something much earlier...
nostr:nprofile1qqsvrlrhw86l5sv06wkyjgs6rrcekskvk7nx8k50qn9m7mqgeqxjpvgpzdmhxue69uhhqatjwpkx2urpvuhx2ue0tc48yt did diagon alley make a real trade?
plebeian.market might have facilitated something as well but I'm not sure when they made the migration over to Nostr...